【摘要】 依据断裂力学原理 ,以钢筋混凝土受弯构件为研究对象 ,分析建筑构件中微裂纹扩展与裂缝终止问题 ,指出裂纹跨越钢筋后因钢筋作用构件应力将发生转移而重新分布 ,裂缝终止条件与跨钢筋裂缝尖端附近的应力分布有关更多还原

【Abstract】 Based on the principle of fracture mechanics,the stability of fracture spreading in structural members is analyzed in this paper.It is shown that analysis of the stress distribution in the vicinity of fractural point is important for the consideration of the structural stable problems.更多还原